This is the first Porsche 911 to get Singer and Williams' 500-horsepower engine

Filed under: Aftermarket,Porsche,Coupe,Classics,Performance It's lightweight, too.Continue reading This is the first Porsche 911 to get Singer and Williams' 500-horsepower engine This is the first Porsche 911 to get Singer and Williams' 500-horsepower engine originally appeared on Autoblog on Tue, 14 Nov 2017 12:01:00 EST. Please see our terms for use of feeds.